Police say the man believed responsible for the explosion at the ACL headquarters in Canberra wasn’t religiously or politically motivated.

They are waiting to speak further with the 35-year-old man, who is in a Canberra hospital in a critical condition.

“As a result of our conversations with the man, we have been able to establish that his actions were not politically, religiously or ideologically motivated,” ACT Chief Police Officer Mark Walters said.